2,674 research outputs found
Poststroke Trajectories: The Process of Recovery Over the Longer Term Following Stroke
We adopted a grounded theory approach to explore the process of recovery experienced by stroke survivors over the longer term who were living in the community in the United Kingdom, and the interacting factors that are understood to have shaped their recovery trajectories. We used a combination of qualitative methods. From the accounts of 22 purposively sampled stroke survivors, four different recovery trajectories were evident: (a) meaningful recovery, (b) cycles of recovery and decline, (c) ongoing disruption, (d) gradual, ongoing decline. Building on the concept of the illness trajectory, our findings demonstrate how multiple, interacting factors shape the process and meaning of recovery over time. Such factors included conception of recovery and meanings given to the changing self, the meanings and consequences of health and illness experiences across the life course, loss, sense of agency, and enacting relationships. Awareness of the process of recovery will help professionals better support stroke survivors
Scaling-up and rooting-down: a case study of North-South partnerships for health from Tanzania
Background: North-South Partnership (NSP) is the mandated blueprint for much global health action. Northern partners contribute funding and expertise and Southern partners contribute capacity for local action. Potential Northern partners are attracted to Southern organizations that have a track record of participating in well-performing NSPs. This often leads to the rapid ‘scaling up’ of the Southern organization's activities, and more predictable and stable access to resources. Yet, scaling up may also present challenges and threats, as the literature on rapid organization growth shows. However, studies of the impact of scaling up within NSPs in particular are absent from the literature, and the positive and negative impact of scaling up on Southern partners’ functioning is a matter of speculation. Objective: The purpose of this study is to examine how scaling up affects a Southern partner's organizational functioning, in a Southern grassroots NGO with 20 years of scaling up experience. Design: A case study design was used to explore the process and impact of scaling up in KIWAKKUKI, a women's grassroots organization working on issues of HIV and AIDS in the Kilimanjaro region of Tanzania. Data included documents, observation notes and in-depth interviews with six participants. The data were analyzed by applying an established systems framework of partnership functioning, in addition to a scaling up typology. Results: KIWAKKUKI has experienced significant scale-up of activities over the past 20 years. Over time, successful partnerships and programs have created synergy and led to further growth. As KIWAKUKKI expanded so did both its partnerships and grassroots base. The need for capacity building for volunteers exceeded the financial resources provided by Northern partners. Some partners did not have such capacity building as part of their own central mission. This gap in training has produced negative cycles within the organization and its NSPs. Conclusions: Northern partners were drawn to KIWAKKUKI because of its strong and rapidly growing grassroots base, however, a lack of funding has led to inadequate training for the burgeoning grassroots. Opportunity exists to improve this negative result: Northern organizations that value community engagement can purposefully align their missions and funding within NSP to better support grassroots efforts, especially through periods of expansion
Detecting the Cosmic Gravitational Wave Background with the Big Bang Observer
The detection of the Cosmic Microwave Background Radiation (CMB) was one of
the most important cosmological discoveries of the last century. With the
development of interferometric gravitational wave detectors, we may be in a
position to detect the gravitational equivalent of the CMB in this century. The
Cosmic Gravitational Background (CGB) is likely to be isotropic and stochastic,
making it difficult to distinguish from instrument noise. The contribution from
the CGB can be isolated by cross-correlating the signals from two or more
independent detectors. Here we extend previous studies that considered the
cross-correlation of two Michelson channels by calculating the optimal signal
to noise ratio that can be achieved by combining the full set of interferometry
variables that are available with a six link triangular interferometer. In
contrast to the two channel case, we find that the relative orientation of a
pair of coplanar detectors does not affect the signal to noise ratio. We apply
our results to the detector design described in the Big Bang Observer (BBO)
mission concept study and find that BBO could detect a background with
.Comment: 15 pages, 12 Figure
Blaming Bill Gates AGAIN! Misuse, overuse and misunderstanding of performance data in sport
Recently in Sport, Education and Society, Williams and Manley (2014) argued against the heavy reliance on technology in professional Rugby Union and elite sport in general. In summary, technology is presented as an elitist, ‘gold standard’ villain that management and coaches use to exert control and by which players lose autonomy, identity, motivation, social interactions and expertise. In this article we suggest that the sociological interpretations and implications offered by Williams and Manley may be somewhat limited when viewed in isolation. In doing so, we identify some core methodological issues in Williams and Manley’s study and critically consider important arguments for utilising technology; notably, to inform coach decision making and generate player empowerment. Secondly, we present a different, yet perhaps equally concerning, practice-oriented interpretation of the same results but from alternative coaching and expertise literature. Accordingly, we suggest that Williams and Manley have perhaps raised their alarm prematurely, inappropriately and on somewhat shaky foundations. We also hope to stimulate others to consider contrary positions, or at least to think about this topic in greater detail. More specifically, we encourage coaches and academics to think carefully about what technology is employed, how and why, and then the means by which these decisions are discussed with and, preferably, sold to players. Certainly, technology can significantly enhance coach decision making and practice, while also helping players to optimise their focus, empowerment and independence in knowing how to achieve their personal and collective goals
Morphologies of High Redshift, Dust Obscured Galaxies from Keck Laser Guide Star Adaptive Optics
Spitzer MIPS images in the Bootes field of the NOAO Deep Wide-Field Survey
have revealed a class of extremely dust obscured galaxy (DOG) at z~2. The DOGs
are defined by very red optical to mid-IR (observed-frame) colors, R - [24 um]
> 14 mag, i.e. f_v (24 um) / f_v (R) > 1000. They are Ultra-Luminous Infrared
Galaxies with L_8-1000 um > 10^12 -10^14 L_sun, but typically have very faint
optical (rest-frame UV) fluxes. We imaged three DOGs with the Keck Laser Guide
Star Adaptive Optics (LGSAO) system, obtaining ~0.06'' resolution in the
K'-band. One system was dominated by a point source, while the other two were
clearly resolved. Of the resolved sources, one can be modeled as a exponential
disk system. The other is consistent with a de Vaucouleurs profile typical of
elliptical galaxies. The non-parametric measures of their concentration and
asymmetry, show the DOGs to be both compact and smooth. The AO images rule out
double nuclei with separations of greater than 0.1'' (< 1 kpc at z=2), making
it unlikely that ongoing major mergers (mass ratios of 1/3 and greater) are
triggering the high IR luminosities. By contrast, high resolution images of z~2
SCUBA sources tend to show multiple components and a higher degree of
asymmetry. We compare near-IR morphologies of the DOGs with a set of z=1
luminous infrared galaxies (LIRGs; L_IR ~ 10^11 L_sun) imaged with Keck LGSAO
by the Center for Adaptive Optics Treasury Survey. The DOGs in our sample have
significantly smaller effective radii, ~1/4 the size of the z=1 LIRGs, and tend
towards higher concentrations. The small sizes and high concentrations may help
explain the globally obscured rest-frame blue-to-UV emission of the DOGs.Comment: 9 pages, 7 figures, 2 tables, accepted for publication in the
Astronomical Journa
Going beyond defining: Preschool educators\u27 use of knowledge in their pedagogical reasoning about vocabulary instruction
Previous research investigating both the knowledge of early childhood educators and the support for vocabulary development present in early childhood settings has indicated that both educator knowledge and enacted practice are less than optimal, which has grave implications for children\u27s early vocabulary learning and later reading achievement. Further, the nature of the relationship between educators\u27 knowledge and practice is unclear, making it difficult to discern the best path towards improved knowledge, practice, and children\u27s vocabulary outcomes. The purpose of the present study was to add to the existing literature by using stimulated recall interviews and a grounded approach to examine how 10 preschool educators used their knowledge to made decisions about their moment-to-moment instruction in support of children\u27s vocabulary development. Results indicate that educators were thinking in highly context-specific ways about their goals and strategies for supporting vocabulary learning, taking into account important knowledge of their instructional history with children and of the children themselves to inform their decision making in the moment. In addition, they reported thinking about research-based goals and strategies for supporting vocabulary learning that went beyond simply defining words for children. Implications for research and professional development are discussed
Influential factors of aligning Spotify squads in mission-critical and offshore projects – a longitudinal embedded case study
Changing the development process of an organization is one of the toughest and riskiest decisions. This is particularly true if the known experiences and practices of the new considered ways of working are relative and subject to contextual assumptions. Spotify engineering culture is deemed as a new agile software development method which increasingly attracts large-scale organizations. The method relies on several small cross-functional self-organized teams (i.e., squads). The squad autonomy is a key driver in Spotify method, where a squad decides what to do and how to do it. To enable effective squad autonomy, each squad shall be aligned with a mission, strategy, short-term goals and other squads. Since a little known about Spotify method, there is a need to answer the question of: How can organizations work out and maintain the alignment to enable loosely coupled and tightly aligned squads?
In this paper, we identify factors to support the alignment that is actually performed in practice but have never been discussed before in terms of Spotify method. We also present Spotify Tailoring by highlighting the modified and newly introduced processes to the method. Our work is based on a longitudinal embedded case study which was conducted in a real-world large-scale offshore software intensive organization that maintains mission-critical systems. According to the confidentiality agreement by the organization in question, we are not allowed to reveal a detailed description of the features of the explored project
Star Clusters in the Nearby Late-Type Galaxy NGC 1311
Ultraviolet, optical and near infrared images of the nearby (D ~ 5.5 Mpc) SBm
galaxy NGC 1311, obtained with the Hubble Space Telescope, reveal a small
population of 13 candidate star clusters. We identify candidate star clusters
based on a combination of their luminosity, extent and spectral energy
distribution. The masses of the cluster candidates range from ~1000 up to
~100000 Solar masses, and show a strong positive trend of larger mass with
increasing with cluster age. Such a trend follows from the fading and
dissolution of old, low-mass clusters, and the lack of any young super star
clusters of the sort often formed in strong starbursts. The cluster age
distribution is consistent with a bursting mode of cluster formation, with
active episodes of age ~10 Myr, ~100 Myr and ~1 Gyr. The ranges of age and mass
we probe are consistent with those of the star clusters found in quiescent
Local Group dwarf galaxies.Comment: 21 pages, 11 figures, accepted by A
The Digital Life of Walkable Streets
Walkability has many health, environmental, and economic benefits. That is
why web and mobile services have been offering ways of computing walkability
scores of individual street segments. Those scores are generally computed from
survey data and manual counting (of even trees). However, that is costly, owing
to the high time, effort, and financial costs. To partly automate the
computation of those scores, we explore the possibility of using the social
media data of Flickr and Foursquare to automatically identify safe and walkable
streets. We find that unsafe streets tend to be photographed during the day,
while walkable streets are tagged with walkability-related keywords. These
results open up practical opportunities (for, e.g., room booking services,
urban route recommenders, and real-estate sites) and have theoretical
implications for researchers who might resort to the use social media data to
tackle previously unanswered questions in the area of walkability.Comment: 10 pages, 7 figures, Proceedings of International World Wide Web
Conference (WWW 2015
Linking Physical Education With Community Sport and Recreation: A Program for Adolescent Girls
The engagement of adolescent girls in physical activity (PA) is a persistent challenge. School-based PA programs have often met with little success because of the lack of linkages between school and community PA settings. The Triple G program aimed to improve PA levels of secondary school girls (12-15 years) in regional Victoria, Australia. The program included a school-based physical education (PE) component that uniquely incorporated student-centered teaching and behavioral skill development. The school component was conceptually and practically linked to a community component that emphasized appropriate structures for participation. The program was informed by ethnographic fieldwork to understand the contextual factors that affect girls’ participation in PA. A collaborative intervention design was undertaken to align with PE curriculum and coaching and instructional approaches in community PA settings. The theoretical framework for the intervention was the socioecological model that was underpinned by both individual-level (social cognitive theory) and organizational-level (building organizational/community capacity) strategies. The program model provides an innovative conceptual framework for linking school PE with community sport and recreation and may benefit other PA programs seeking to engage adolescent girls. The objective of this article is to describe program development and the unique theoretical framework and curriculum approaches
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